{"instruction": "You are an expert in relationship extraction. Please extract relationship triples that match the schema definition from the input. Return an empty list for relationships that do not exist. Please respond in the format of a JSON string.", "schema": ["product producer", "instrument agency", "entity origin", "member collection"], "input": "this extensor mechanism is composed chiefly of the quadriceps femoris ( rectus femoris , vastus lateralis , vastus intermedius , vastus medialis ) , quadriceps tendon , patella , and patellar tendon ."}
{"product producer": [], "instrument agency": [], "entity origin": [], "member collection": []}